Gem Valley Mining and Gem/Rock-shop is a full-service lapidary business. Gem-Valley LLC is a public gem-mining/facility where you can find treasures you can keep. We are located near the historical "Ore Knob Mine" We are OPEN "in May to mid-October" Friday-Sunday for Gem Mining at the Flumes 9:00am-2:00pm and Open MONDAYS from 9:00AM to 2:00PM at the Gem-Valley Store: Gem-Bucket prices vary as we offer families many options to help them stay in their budget and still find many GREAT gemstones.